br: fix the issue that config not paused with ttl correctly (#31725)

[ti-srebot]

cherry-pick #31725 to release-6.0
You can switch your code base to this Pull Request by using git-extras:

# In tidb repo:
git pr https://github.com/pingcap/tidb/pull/34524

After apply modifications, you can push your change to this PR via:

git push git@github.com:ti-srebot/tidb.git pr/34524:release-6.0-e9e1e5317636

---

What problem does this PR solve?

Issue Number: close #31733

Problem Summary:
Currently pause configs not work. it changed the config without ttl.
This PR tried to make ttl works.

What is changed and how it works?

use the correct url.

Check List

Tests

• Unit test
• Integration test
• Manual test (add detailed scripts or steps below)
• No code

Side effects

• Performance regression: Consumes more CPU
• Performance regression: Consumes more Memory
• Breaking backward compatibility

Documentation

• Affects user behaviors
• Contains syntax changes
• Contains variable changes
• Contains experimental features
• Changes MySQL compatibility

Release note

Fix the issue that some pd configs not set back when br/lightning exit abnormally.

[ti-chi-bot]

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[ti-srebot]

/run-all-tests

[ti-srebot]

@3pointer you're already a collaborator in bot's repo.

[xhebox]

closed for DMR version